The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Stepien Thomas M since 2026.
This trader's CIK number is 2067233.
At the time of last reporting, Stepien Thomas M was the Chief Executive Officer of Amprius Technologies, Inc.. (stock ticker symbol AMPX).
Also see all insider trading activities at Amprius Technologies, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2026 | AMPX | 0 | $0 | 60,702 | $897,661 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-05-21 | AMPX | Sale | 60,702 | 14.79 | 897,661 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Stepien Thomas M (Chief Executive Officer of Amprius Technologies, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.